MM74LCX244MTCX-01+
MM74LCX573MTCX
MM74LCX74MX-01+
MM74LS169N
MM74LS244WMX-98+
MM74LS245WMX-98+
MM74LS365N
MM74LVT162244MTDX
MM74LVX08MX
MM74LVX245MTCX
19129911934(手机优先微信同号)